These traps are used for the catching of European Wasps. Quite often when you cant find a nest – these are your best bet. Wasp dome are hung away from the house (in the direction that the wasps are flying) and the attractant inside will lure the wasp into the dome. Once the wasp it is the dome, it cannot get out and will ultimately die. Traps need to be refreshed when full. Care will need to be taken to ensure all wasps are dead at the time of emptying to avoid stings. Great to hang up in Summer to stop the Euros coming for your BBQ!